Search their name in Google.
If you're using Rapportive for the first time, this will help you get to grips with it.
1) Download Rapportive
3) Once Rapportive is added to Gmail, guess different combinations using examples like the ones listed below:
Combinations you can try
Look for their Email ID on their personal website.
You can always look under Contact or Our team.
Search their email using their website domain
NOTE: To confirm, copy the email address and match the ID with LinkedIn Profile using Rapportive
Look for Email using Person's Twitter Handle name
Copy their Twitter handle and search it in Rapportive.
[email protected] ([email protected])
You should also use free email domain names like:
gmail.com, yahoo.com, hotmail.com, aol.com
Search for a contact's email using a free domain, like gmail.com
Look for the contacts G+ Profile, and sometimes that will display their email address too.
If you were looking for an editor at Fast Company who didn't have a publicly listed email address, you could search to decode the structure. For example on this site:
Seeing that the format is firstinitiallastname@domain, you can now guess that Erin Schulte's email address is [email protected].
See step 6 ^
Here's a spreadsheet provided by HubSpot for creating a list of possible email addresses you can check: https://docs.google.com/spreadsheets/d/1s0vi5sbU6zIKZNt1RmTiD4C8AjnP--U2T_EnCjYLeI4/edit#gid=0
Make a copy of this in your own Google Sheets account by going 'File > Make a Copy'.
Replace the generic info with your contact's details and to generate a list of possibilities.
Paste your options into MailTester.com one by one to verify that the email address exists.
This should be a last resort because it's time intensive.